A portable water sampling device

Abstract

The utility model discloses a portable water sample collection device, including frame, the top rotation of frame is connected with movable disc, the bottom of movable disc is sealed and is pasted with annular plate, and the fixed connection between annular plate and frame, the even of annular plate is equipped with a plurality of drain holes, the bottom of annular plate even fixed connection has a plurality of outer thread sleeve of penetrating to top. In the utility model, through the cooperation design of rotary movable disc and annular plate, the quick switching sampling of multiple sample bottles is realized, and the positioning of elastic locking rod and limiting hole ensures the alignment reliability of fixed pipe, drain hole and outer thread sleeve. The linkage structure of pumping and draining assembly and one -way valve can not only replace residual water sample efficiently to avoid cross -contamination, but also can complete sampling through the reciprocating motion of piston. The integrated design of winding disc and hose is convenient to store, and the space utilization is optimized by the staggered distribution of drain hole and outer thread sleeve.

Description

Technical Field

[0001] This utility model relates to the field of water sample collection technology, and in particular to a portable water sample collection device. Background Technology

[0002] In water environment monitoring, water quality surveys, and scientific research experiments, water sampling is a crucial step in obtaining accurate data. Traditional water sampling methods typically employ a single-sample approach, requiring the sampling container to be changed or cleaned after each sample collection. This process is cumbersome and inefficient. Furthermore, multiple sampling sessions can easily introduce cross-contamination, affecting the accuracy of the test results.

[0003] In existing technologies, some water sampling devices employ a multi-bottle design to improve sampling efficiency, but the following problems still exist:

[0004] Low sampling efficiency: Traditional devices require disassembly or reinstallation when changing sampling bottles, which is inconvenient and makes it difficult to quickly switch sampling points.

[0005] Insufficient pollution prevention capabilities: Some devices lack effective residual water sample removal mechanisms, leading to mutual interference between water samples from different sampling points.

[0006] Poor portability: Some multi-bottle sampling devices have complex structures and large volumes, making them unsuitable for carrying and use in field operations.

[0007] Therefore, a portable water sample collection device with a compact structure, convenient operation, quick switching of sampling bottles, and effective avoidance of cross-contamination is proposed. Utility Model Content

[0008] This invention is a portable water sample collection device proposed to address the shortcomings of existing technologies.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: a portable water sample collection device, including a frame, a movable disk rotatably connected to the top of the frame, an annular plate sealed and fitted to the bottom of the movable disk, and the annular plate fixedly connected to the frame, the annular plate having a plurality of drainage holes evenly distributed, and a plurality of external threaded sleeves extending to the top evenly fixedly connected to the bottom of the annular plate, and sample bottles being sealed and threaded onto the outer surfaces of the plurality of external threaded sleeves;

[0010] An elastic locking rod is fixedly installed on one side of the outer surface of the movable plate, and multiple limiting holes are evenly opened on the top of the annular plate, and the limiting holes match the elastic locking rod.

[0011] The top of the movable plate is fixedly connected to a pumping assembly. The outer surfaces of the pumping assembly are respectively fixedly connected to a one-way valve for drainage and a water inlet pipe. The outlet end of the one-way valve for drainage is fixedly connected to a fixed pipe, which passes through the movable plate and is fixedly connected to it. The fixed pipe is matched with the drain hole and the external threaded sleeve.

[0012] The top of the water inlet pipe is fixedly connected to a one-way valve for water inlet;

[0013] The outer surface of the extraction assembly is fixedly fitted with a take-up reel, the outer surface of the take-up reel is fixedly connected with a hose, and the inside of the take-up reel is provided with a flow channel, and the two ends of the flow channel are respectively connected to the hose and the water inlet check valve.

[0014] The inlet end of the hose is fixedly connected to an inlet filter cartridge.

[0015] Furthermore, the multiple drainage holes are arranged in a ring, and the multiple external threaded sleeves are also arranged in a ring, with the drainage holes and external threaded sleeves being staggered. This structure optimizes the spatial layout, ensuring that the drainage holes and external threaded sleeves do not interfere with each other, thus ensuring the independence of water sample discharge and sample bottle installation.

[0016] Furthermore, the number of limiting holes is the sum of the number of drainage holes and external threaded sleeves, and corresponds one-to-one with the drainage holes and external threaded sleeves. This design enables the movable disc to be accurately positioned when rotating, ensuring that the fixed tube is always aligned with the drainage hole or sample bottle, and avoiding misoperation.

[0017] Furthermore, the elastic locking rod includes a mounting plate, which is fixedly connected to the movable disc. The top of the mounting plate is provided with a positioning pin that extends through to the bottom, and the positioning pin is slidably connected to the mounting plate and matches the limiting hole. A tension spring is sleeved on the outer surface of the positioning pin, and the tension spring is fixedly installed on the top of the mounting plate. The top of the tension spring and the top of the positioning pin are fixedly connected to a pull plate. The elastic locking rod adopts a spring reset structure. During operation, it can be unlocked by simply pulling the pull plate, and automatically reset and lock after being released.

[0018] Furthermore, the pumping assembly includes a fixed cylinder, which is fixedly installed on the top of the movable disc and is fixedly connected to the water inlet pipe and the drain one-way valve. The winding reel is fixedly sleeved on the outer surface of the fixed cylinder. A piston is sealed and slidably mounted on the inner surface of the fixed cylinder. A push-pull rod is fixedly connected to the top of the piston. This pumping assembly has a simple structure, and pumping and draining operations can be completed simply by pushing and pulling the piston.

[0019] Furthermore, a plastic tube clamp is fitted onto the outer surface of the water inlet filter cartridge, and the plastic tube clamp is fixedly connected to the winding reel. The plastic tube clamp has a fixing effect on the water inlet filter cartridge, which is conducive to overall storage and carrying.

[0020] Furthermore, a handle is fixedly connected to the top of the frame. The handle is designed to be easy to carry and move, making the device more suitable for field operations.

[0021] The beneficial effects of this utility model are:

[0022] In use, this portable water sampling device utilizes a rotating disc and annular plate design to enable rapid switching between multiple sample bottles. The elastic locking rod and limiting hole ensure reliable alignment of the fixing tube, drain hole, and external threaded sleeve. The extraction assembly, combined with a one-way valve linkage structure, efficiently replaces residual water samples to avoid cross-contamination, while the reciprocating motion of the piston completes sampling. The integrated design of the reel and hose facilitates storage, while the staggered distribution of the drain hole and external threaded sleeve optimizes space utilization. The overall device is easy to operate, combining sampling accuracy, contamination prevention, and portability, making it particularly suitable for continuous water sample collection at different locations. Attached Figure Description

[0023] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 : First-view structural diagram of the present invention;

[0025] Figure 2 : Overall second-view structural diagram of this utility model;

[0026] Figure 3 : Overall third-view structural diagram of this utility model;

[0027] Figure 4 Partial sectional view of this utility model;

[0028] Figure 5 The present utility model Figure 1 Enlarged view of point A in the middle.

[0029] The attached figures are labeled as follows:

[0030] 1. Frame; 2. Sample bottle; 3. Movable tray; 4. Drainage check valve; 5. Hose; 6. Rewind reel; 7. Fixed cylinder; 8. Push-pull rod; 9. Handle; 10. External threaded sleeve; 11. Drain hole; 12. Annular plate; 13. Water inlet filter cartridge; 14. Plastic pipe clamp; 15. Water inlet check valve; 16. Water inlet pipe; 17. Fixed pipe; 18. Flow channel; 19. Piston; 20. Pull plate; 21. Tension spring; 22. Mounting plate; 23. Positioning pin; 24. Limiting hole. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figures 1 to 5 As shown, a portable water sample collection device is disclosed, comprising a frame 1, a movable disk 3 rotatably connected to the top of the frame 1, an annular plate 12 sealed to the bottom of the movable disk 3, and the annular plate 12 fixedly connected to the frame 1. The annular plate 12 has a plurality of drainage holes 11 evenly distributed, and a plurality of threaded sleeves 10 extending to the top are evenly fixedly connected to the bottom of the annular plate 12. Sample bottles 2 are sealed to the outer surfaces of the threaded sleeves 10. The drainage holes 11 are arranged in a ring, and the threaded sleeves 10 are also arranged in a ring, with the drainage holes 11 and the threaded sleeves 10 being staggered. A sealing gasket matching the annular plate 12 is fixedly connected to the top of the annular plate 12 to ensure the sealing between the annular plate 12 and the movable disk 3, while not affecting the use of the drainage holes 11 and the threaded sleeves 10.

[0033] An elastic locking rod is fixedly installed on one side of the outer surface of the movable plate 3. Multiple limiting holes 24 are evenly opened on the top of the annular plate 12, and the limiting holes 24 match the elastic locking rod. The number of limiting holes 24 is the sum of the number of drainage holes 11 and external threaded sleeves 10, and corresponds one-to-one with the drainage holes 11 and external threaded sleeves 10.

[0034] The elastic locking lever includes a mounting plate 22, which is fixedly connected to the movable disc 3. The top of the mounting plate 22 is provided with a positioning pin 23 that extends through to the bottom, and the positioning pin 23 is slidably connected to the mounting plate 22 and matches the limiting hole 24. A tension spring 21 is sleeved on the outer surface of the positioning pin 23, and the tension spring 21 is fixedly installed on the top of the mounting plate 22. The top of the tension spring 21 and the top of the positioning pin 23 are fixedly connected to a pull plate 20. The tension spring 21 is made of stainless steel (such as 304 or 316 stainless steel), which has excellent corrosion resistance and is suitable for long-term use in humid or watery environments to avoid affecting the elastic performance due to rust. The elastic coefficient is usually designed to be 0.5~2N / mm (the specific value needs to be adjusted according to the rotation resistance of the movable disc 3). The elastic force must ensure that the positioning pin 23 can be stably locked into the limiting hole 24 to prevent the movable disc 3 from deflecting unexpectedly. At the same time, the elastic force should not be too large to ensure that the user can easily unlock the device through the pull plate 20, making the operation effortless.

[0035] A suction and discharge assembly is fixedly connected to the top of the movable tray 3. A drain check valve 4 and a water inlet pipe 16 are fixedly connected to each other on both sides of the outer surface of the suction and discharge assembly. A fixed pipe 17 is fixedly connected to the outlet end of the drain check valve 4, and the fixed pipe 17 passes through the movable tray 3 and is fixedly connected to it. The fixed pipe 17 matches the drain hole 11 and the external threaded sleeve 10. A water inlet check valve 15 is fixedly connected to the top of the water inlet pipe 16. A winding reel 6 is fixedly sleeved on the outer surface of the suction and discharge assembly. A flexible hose 5 is fixedly connected to the outer surface of the winding reel 6. The internal flow channel 18 is provided, and the two ends of the flow channel 18 are respectively connected to the hose 5 and the one-way valve 15 for water inlet. The pumping assembly includes a fixed cylinder 7, which is fixedly installed on the top of the movable disc 3 and is fixedly connected to the water inlet pipe 16 and the one-way valve 4 for drainage. The winding disc 6 is fixedly sleeved on the outer surface of the fixed cylinder 7. A piston 19 is sealed and slidably mounted on the inner surface of the fixed cylinder 7. A push-pull rod 8 is fixedly connected to the top of the piston 19. Multiple sealing rings are fixedly sleeved on the outer surface of the piston 19 to achieve the sealing between the piston 19 and the fixed cylinder 7.

[0036] The inlet end of the hose 5 is fixedly connected to the inlet filter cartridge 13. The outer surface of the inlet filter cartridge 13 is fitted with a plastic pipe clamp 14, and the plastic pipe clamp 14 is fixedly connected to the winding reel 6. The inlet filter cartridge 13 is made of metal material and adopts a counterweight design to provide gravity for sinking while ensuring water filtration.

[0037] A handle 9 is fixedly connected to the top of the frame 1. A rubber sleeve can be added to the handle 9 at the hand position to increase the comfort of holding it.

[0038] Working principle: When a sample needs to be taken, remove the inlet filter cartridge 13, then unfold the hose 5, and then throw the inlet filter cartridge 13 into the water area to be sampled. Then manually pull the push-pull rod 8, which drives the piston 19 to rise. When the piston 19 rises, it pumps water from the water area through the inlet pipe 16, the inlet check valve 15, the flow channel 18, the hose 5, and the inlet filter cartridge 13. After pumping, push the piston 19 down by the push-pull rod 8 to force the water out of the fixed cylinder 7. The water is then discharged through the drain check valve 4, the fixed pipe 17, and the drain hole 11. This operation is repeated several times to remove the residual water from the previous water area sampling. Then, pull the positioning pin 23 up by the pull plate 20 to disengage the positioning pin 23 from the limiting hole 24. Then rotate the movable plate 3 to position the fixed pipe 17 above the corresponding sample bottle 2. Then repeat the above pumping and discharging operation to achieve the sampling operation. After completion, move the fixed pipe 17 to the next drain hole 11.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A portable water sample collection device, comprising a frame (1), characterized in that: The top of the frame (1) is rotatably connected to a movable disk (3), and the bottom of the movable disk (3) is sealed and fitted with an annular plate (12), and the annular plate (12) is fixedly connected to the frame (1). The annular plate (12) is evenly provided with multiple drainage holes (11), and the bottom of the annular plate (12) is evenly fixedly connected with multiple external threaded sleeves (10) that extend to the top. The outer surfaces of the multiple external threaded sleeves (10) are all sealed with sample bottles (2). An elastic locking rod is fixedly installed on one side of the outer surface of the movable disc (3), and multiple limiting holes (24) are evenly opened on the top of the annular plate (12), and the limiting holes (24) match the elastic locking rod. The top of the movable disc (3) is fixedly connected to a pumping assembly. The outer surfaces of the pumping assembly are respectively fixedly connected to a one-way valve (4) for drainage and a water inlet pipe (16). The outlet end of the one-way valve (4) for drainage is fixedly connected to a fixed pipe (17). The fixed pipe (17) passes through the movable disc (3) and is fixedly connected to the movable disc (3). The fixed pipe (17) is matched with the drain hole (11) and the external threaded sleeve (10). The top of the water inlet pipe (16) is fixedly connected to a one-way valve (15) for water inlet; The outer surface of the pumping assembly is fixedly fitted with a take-up reel (6), and the outer surface of the take-up reel (6) is fixedly connected with a hose (5). The inside of the take-up reel (6) is provided with a flow channel (18), and the two ends of the flow channel (18) are respectively connected to the hose (5) and the one-way valve (15) for water inlet. The water inlet end of the hose (5) is fixedly connected to the water inlet filter cartridge (13).

2. The portable water sampling device according to claim 1, characterized in that: The multiple drainage holes (11) are arranged in a ring, and the multiple external threaded sleeves (10) are also arranged in a ring, with the drainage holes (11) and the external threaded sleeves (10) being misaligned.

3. The portable water sampling device according to claim 1, characterized in that: The number of limiting holes (24) is the sum of the number of drainage holes (11) and external threaded sleeves (10), and corresponds one-to-one with the drainage holes (11) and external threaded sleeves (10).

4. The portable water sampling device according to claim 1, characterized in that: The elastic locking rod includes a mounting plate (22), and the mounting plate (22) is fixedly connected to the movable disc (3). The top of the mounting plate (22) is provided with a positioning pin (23) that extends to the bottom. The positioning pin (23) is slidably connected to the mounting plate (22) and matches the limiting hole (24). The outer surface of the positioning pin (23) is fitted with a tension spring (21), and the tension spring (21) is fixedly installed on the top of the mounting plate (22). The top of the tension spring (21) and the top of the positioning pin (23) are fixedly connected to a pull plate (20).

5. A portable water sampling device according to claim 1, characterized in that: The extraction assembly includes a fixed cylinder (7), which is fixedly installed on the top of the movable disc (3) and is fixedly connected to the water inlet pipe (16) and the drain one-way valve (4). The winding disc (6) is fixedly sleeved on the outer surface of the fixed cylinder (7). A piston (19) is sealed and slidably mounted on the inner surface of the fixed cylinder (7). A push-pull rod (8) is fixedly connected to the top of the piston (19).

6. A portable water sampling device according to claim 1, characterized in that: The outer surface of the water inlet filter cartridge (13) is fitted with a plastic pipe clamp (14), and the plastic pipe clamp (14) is fixedly connected to the winding reel (6).

7. A portable water sampling device according to claim 1, characterized in that: A handle (9) is fixedly connected to the top of the frame (1).

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